John Sidney Linnell (born June 12, 1959) is one half of the alternative-rock duo They Might Be Giants. In 1982, he co-founded the band with John Flansburgh, and continues to play a primary role in the duo as a songwriter, singer, and musician. Generally, Linnell sings and plays accordion, keyboards, and saxophones for TMBG.
Courtesy of This Might Be a Wiki.